Lightning Quality

We can devide and examine lightning issue into two saparete parts.

1. Lighting Quality

• Light Color
• Ability to See Colors
• Glare/Design (Impacts People & Productivity)

• Technology
• Design
• Maintenance

We have two main indicators about lightning qyality:

Color Rendering Index (CRI)

Indicates the effect on the color appearance of objects illuminated by the light source.

90 – 100 CRI = Excellent color rendition
75 - 85 CRI = Good color rendition
55 – 70 CRI = Fair color rendition
0 – 55 CRI = Poor color rendition
 

Correlated Color Temperature (CCT)

The color appearance of light emitted from a light

< 3200K = “warm” or red side of spectrum

> 4000K = “cool” or blue side of spectrum

Also we have some consideration point. These can be sorted like below:

• Uniformity
• Color rendering index
• Color temperature
• Glare
• Light source selection

Please keep on track for my next posts...

@steemitci